Malicious PDF — malware analysis report

Static analysis result for SHA-256 68e66c7a2c1b4dc5…

MALICIOUS

PDF

65.2 KB Created: 2021-02-25 02:35:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5fa9bf4f0677e36f095c1985c4d291e5 SHA-1: 2ca77e8fab63a65c4725277af091fb5f194e2878 SHA-256: 68e66c7a2c1b4dc51561db147baa484ce3533212b22c7efb0acef45a93a26729
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jacksth.ru/wix?keyword=kevin+trudeau+audio+books PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4499979/normal_60126407cddfd.pdfIn PDF document text
    • http://tohld.in/what_is_the_storyline_behind_the_nutcracker_balletrvz5m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495685/normal_5fcc21355431a.pdfIn PDF document text
    • http://appless.space/fapetoritisafj4jo.pdfIn PDF document text
    • http://health-top.ru/hex_to_binary_worksheetuamcu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386824/normal_5fd7a782166cd.pdfIn PDF document text
    • http://all-host.site/rujuridijubulixejomz6b1n.pdfIn PDF document text
    • http://solewuzifadi.iblogger.org/clutterfunk_piano_sheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380395/normal_5fe641138af39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389366/normal_5fdf7e6e35b08.pdfIn PDF document text
    • https://cdn.sqhk.co/dapubebireba/fQjcicP/fatelozuzuramogifen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gamutazuzores.epizy.com/namibian_work_permit_application_form.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B1 5020 bytes
SHA-256: 32c429d98f233e4b1aa1634533eea6c4462db0e6fdb9ff07348ea69671c2f306
font_01_sfnt_off0000d6d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D2 9936 bytes
SHA-256: 60bf0135982539cbda79679a207a1097fe461d1c0ecc101bb7ca7b0332026d63